Flame regulator for incubator lamps and the like



Sept. 21 1926.

P. J. P. SCHRAG ET AL FLAME REGULATORS FOR INCUBATOR LAMPS AND THE LIKE I Filed Jan. 28, 1926 efer kPsc/zm 974a (lgc/zkay Patented Sept 21, 1.926.

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rnrnnai P; soHn-Aennn ADAM J. SCIIRAG', or arerrrnnsou, Kansas;

FLAME REGULATOR r032 inouen'ron 1 names AND una LIKE.

Application filed January 2 1926; Serial No. 4,451.

elongated oval. In accordance with-our invention, we provide an adjustable band 13' a adapted to clampingly engage the wick tube and havingdepending portions 14: for engaging the ends of the oval'and providing supports for pivots 15. Upon the pivots15 are each mounted apair of arms 16, the upper ends of which engage with shutters 17 of a-length equal to the length of the wick tube upon its longer axis and providedcentrally with aV-shaped notch 18.- In applying'th'e band to the wick tube, care is takenv that the bases of these notches, whenthe band is in applied position and the shutters 7 17 are positioned against the sides of the wick tube, substantially align with the upper surface of the wick tube.

To two of the arms 16 at the same end of the attachment, a pair of links 19 are piv- 75 otally connected at their 'lower ends. The upper ends of the links 19 are preferably connected, as at 20,- to the lower end of a socket 21 having a bayonet notch 22 for the reception of a pin 23 carried by the lower 89 end of a rod 24. The upper end of the 'rod 24 is adapted for engagement with the usual thermostatically controlled rod 25 of the incubator with which the device is to be employed and this rodhas at its upper 35 end a series of openings 26 or is otherwise I made adjustable as to length so that it may be properly engaged with the rod 25.

In the use of the device,lwhen the temperature is low and the rod 25'accordingly' 90 lowers, the shutters 17 will be movedto a position substantially as shown in Figure 3 and the .usual operation of "the burner will 7 not be in any way interfered with; As the r heating rises, these shutters approach the 95 upper end ofthe wick tube-and finally in their highest position provide I a continua tionof the wick tube shutting off the flame from the wick at all portions thereof except at that portion of the wick lying at the 100 notches 17. These notches will supply sufiicient'air to permit continuation of flame from the wick at this point, thus providing a pilot light for relighting the wick when the incubator has again cooled. When it is 105 This invention relatesto flame regulators,

for incubator lamps and the like.

An important object of the-invention is to provide a device of this character which may be regulated from the usualthermostatand having means for controllingthe flame by 7 means of which the flame may be entirely out off with the exception of a very small pilot v flame. A still further object of the inventionis toprovidera device of this character, the operating rod of which may be readily detachedfrom the thermostat rod to thereby permit ready accessto' the wick and burner for cleansing of the wick and trimming of the same or to permit the burner cap to be removed for a cleaning operation, if so desired.

A further object of the invention is to provide a device of this character which may be readily attached to a burner without in any manner altering the construction thereof and which may be operated from the usual control rod of an incubator. 7

These and other objects we attain by the construction shown in the accompanying drawings, wherein for the purpose of illustration is shown a preferred embodiment of our invention and wherein Figure 1 is a vertical sectional view through the heating plant of an incubator, the lamp of which has applied thereto a flame control constructed in accordance with our invention V Figure 2 is an enlarged side elevation of the wick tube having the flame control applied thereto, the burner cap being indicated in dotted lines; I

Figure 3 is a section on the line 3-3 of Figure 2, the parts being in the position which they assume when the flame. is at its maximum height;

Figure 4 is a section similar to "that shown in Figure 3, the parts in the position which they assume when the flame is at' its minimum height;

Figure 5 is an enlarged detail section on the line 5-5 of Figure 3.

Referring now more particularly to the drawings, the numeral 10 generally designates the wick tube of an incubator burner and 11 the cap of the burner having the usual slot 12 f with which the wick tube aligns. As is well known to those familiar with the art, the wick tubes of burners of this character are usually in the form of an desired to cleanse'the wick or to make adjustments of the flame of the burner, this may be accomplished by simply pressing downwardly upon the rod 25 or by rotating the rod 24 to disengage the same from the It will be seen from the foresocket 21. going that a device of this character may be struction hereinbefore set forth is obviously. capable of a certain range of change and modilication Without vmaterially departing from the spirit of the invention and we accordingly'do not limit ourselves to such specificstructure except as hereinafter claimed.

WV e claim v 1. In combination with a wick burner including the usual Wick tube, an adjustable band clam ainsz'lv en a ine'the Wick tube and I b O e providing pivots at the opposite ends of the wick tube, a pair of arms pivotallyjengaged with each of said pivots, shutters carried by corresponding ends of said arms and operating means for'said shutters, said shutters 'being'movable about the pivots of the arms thereof .to a position where they form a continuation of the wick tube, the -shutters being provided intermediate their ends with notches opening through'their upper edges and of a depth such that they expose theupper end of the wick tube when in the last named position. 7

p 2. In combination with a Wick burner ineluding the usual. Wick tube, an adjustable hand clampingly engaging the wick tube and providing pivots at the oppositeends of the wick tube, a pair of arms pivotally engaged with each of said pivots, shutters carried by correspon-dingends of said arms and operating means for said shutters, said shutte'rs being each provided centrally with a notch which, in the closed position of the shutters, substantially align at their lower ends with the upper surface of the Wick tube. V In testimony whereof We hereunto afii our signatures.

ETER J. P. SGHRAG. ADAM J. SCHRAGQ 

